The development and transition of the rice farming system to soy or sugarcane industry sources. The use of chemicals and pesticides, which have side effects directly on the bird .
The development and change of agricultural system from rice to planting sugarcane. Soya beans or grounds of tasa karma The use of chemicals and pesticides, which have side effects directly to the birds .
the development and change the system from agricultural cultivation area of rice to sugar cane, soy or industry and the use of chemicals which are toxic effects directly to the bird